scholarly journals East Canal Flood as PDAM water resource DKI Jakarta

2018 ◽  
Vol 74 ◽  
pp. 09001 ◽  
Author(s):  
Wednes Suci Pradafitri ◽  
Setyo Sarwanto Moersidik ◽  
Chairil Abdini
Keyword(s):  
Land Use ◽  
Water Supply ◽  
Land Use Changes ◽  
Water Source ◽  
Poor Quality ◽  
Quality Analysis ◽  
Raw Water ◽  
Factors Affecting ◽  
Pre Treatment

Environmental pollution, resource degradation, and global warming are some examples of environmental problems that have occurred in various countries, including Indonesia. Poor quality, quantity, and continuity of raw water condition make water supply scarce. These problems can be overcome by an intervention to the demand and supply. One of the cities experience this condition is the province of DKI Jakarta. East Flood Canal (BKT) is one of the infrastructure facilities of DKI Jakarta province as a potential source of raw water supply. The study aims to analyze the factors affecting BKT water and the sustainability of BKT water in DKI Jakarta as the raw" water source of PDAM in terms of quality. Analysis of land use and social factors using GIS (Geographic Information System) and questionnaire methods. Analysis of the quality of BKT water using laboratory tests and literature studies. The results of this research are socio-economic activity and land use changes affect the water quality of BKT. The East Canal Flood can become the raw water source of PDAM DKI Jakarta through pre-treatment. This research is very important because it provides a new innovation in overcoming the problem of availability of raw water which is increasingly limited especially in DKI Jakarta.

The Submerged Biofilm Process as a Pre-Treatment for Polluted Raw Water for Tap Water Supply

1990 ◽  
Vol 22 (1-2) ◽  
pp. 137-148 ◽  
Author(s):  
M. Takasaki ◽  
H. Kim ◽  
A. Sato ◽  
M. Okada ◽  
R. Sudo
Keyword(s):  
Tap Water ◽  
Ammonium Nitrogen ◽  
Raw Water ◽  
Factors Affecting ◽  
Treatment Performance ◽  
N Concentration ◽  
Pilot Plant Scale ◽  
Pre Treatment ◽  
Biofilm Process

The submerged biofilm process is a promising system for polluted raw water pre-treatment systems. General treatment performance and factors affecting treatment efficiency were investigated through pilot plant scale experiments using water from four different lakes. Regarding the quality of the raw waters, BOD was generally below 10 mg/l and the ammonium nitrogen (NH4-N) concentration was below 0.4 mg/l. The efficiency of removal of NH4-N was about 80% under complete mixing conditions and when the raw water quality did not fluctuate rapidly. Under the adverse conditions of the low water temperatures which occurred in winter and spring, the removal of NH4-N was 60 to 80%. The critical NH4-N concentration was observed to be approximately 0.01 to 0.02 mg/l, and a moderate decrease in E260 was also observed in the experiments. Overall treatment performance of the submerged biofilm process was superior in those systems with carriers which were not likely to become clogged.

Socio-economic activities around Alau Dam and the quality of raw water supply to Maiduguri Treatment Plant, Nigeria

2014 ◽  
Vol 9 (3) ◽  
pp. 386-391 ◽  
Author(s):  
M. N. Dammo ◽  
A. Y. Sangodoyin
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Water Supply ◽  
Potable Water ◽  
Treatment Plant ◽  
Quality Analysis ◽  
Raw Water ◽  
Economic Activities ◽  
The Impact

Water quality and supply are central to the socio-economic development of any nation. Scarcity of potable water results in the construction of dams and water treatment plants. Unfortunately, provision of potable water through improvement and treatment may prove to be difficult because of the socio-economic activities around a dam. This study is aimed at assessing the socio-economic activities around the Alau Dam Maiduguri, and how they affect the quality of raw water supply to Maiduguri Water Treatment Plant. The data was generated through the administration of questionnaires, and by interview and water quality analysis of dam and irrigation sites. The samples were subjected to physical, chemical and biological analysis to assess the impact of socio economic activities on the dam water, and its suitabilityfor drinking and agricultural uses. Findings reveal pollution with high concentration of nitrate (260–230 mg-NO3/l), phosphate (22–28 mg/l) and Escherichia coli (13–24 n/100 mg). This arose from improper sanitary management, inadequate public education on irrigation,indiscriminate waste disposaland some farming practices. Regular monitoring of socio-economic activities around the dam, and doing away with unhealthy waste disposal practices are recommended to safeguard the raw water supply to the treatment plant.

scholarly journals Kondisi Kualitas Air Sungai Surabaya Studi Kasus: Peningkatan Kualitas Air Baku PDAM Surabaya

2019 ◽  
Vol 20 (1) ◽  
pp. 19 ◽  
Author(s):  
Satmoko Yudo ◽  
Nusa Idaman Said
Keyword(s):  
Water Quality ◽  
Industrial Waste ◽  
Water Source ◽  
Poor Quality ◽  
Raw Water ◽  
High Concentration ◽  
Water Quality Condition ◽  
Industry And Commerce ◽  
The Cost

ABSTRACTThe disposal of domestic and industrial waste to Surabaya river continues to increase, resulting in worse physical condition and severe pollution. The existence of Surabaya river is very important for the sustainability of the economy and the survival of society, industry, and commerce around the riverbank. In addition, Surabaya River becomes the raw water source of PDAM Surabaya and more than 3 million consumers of Surabaya PDAM depend on the water quality condition of Surabaya River. The purpose of this activity is to know the current condition of Surabaya River’s water quality and to determine the technology that can improve the water quality of PDAM. The conclusion that can be drawn from the water quality condition of Surabaya River is the high concentration of organic matter pollutants. Moreover, it is increasing in the dry season. With the increasingly poor quality of raw water coming from Surabaya river, consequently, the cost of processing will become more expensive. Therefore, conventional processing is not able to eliminate the pollutant compounds. One alternative technology to improve the quality of raw water is to apply a pretreatment process with the process biological by using biofilter technology. Keywords: water quality in Surabaya River, Surabaya Municipal Waterworks (PDAM), Biofilter technology ABSTRAKPembuangan limbah domestik dan industri di sepanjang Kali Surabaya terus meningkat, mengakibatkan kondisi fisik sungai semakin memburuk dan mengalami pencemaran semakin berat. Keberadaan kali Surabaya sangat penting bagi keberlangsungan perekonomian dan kelangsungan hidup bagi masyarakat, industri, dan niaga di sekitar bantaran kali. Selain itu Kali Surabaya menjadi sumber air baku PDAM Surabaya dan lebih dari tiga juta konsumen PDAM Surabaya bergantung pada kondisi kualitas air Kali Surabaya. Tujuan kegiatan ini adalah untuk mengetahui kondisi kualitas air Kali Surabaya dan menentukan teknologi yang dapat meningkatkan kualitas air baku PDAM. Kesimpulan yang dapat diambil dari kondisi kualitas air Kali Surabaya adalah tingginya konsentrasi polutan zat organik yang semakin meningkat pada musim kemarau. Dengan semakin buruknya kualitas air baku yang berasal dari Kali Surabaya, akibatnya biaya pengolahan akan menjadi semakin mahal dan pengolahan secara konvesional tidak mampu menghilangkan senyawa polutan tersebut Salah satu teknologi alternatif untuk meningkatkan kualitas air baku PDAM adalah dengan menerapkan proses pengolahan awal (pretreatment) dengan proses biologis menggunakan teknologi biofilter. Kata kunci: kualitas air Kali Surabaya, PDAM Surabaya, Teknologi Biofilter 

scholarly journals Ultramicro Analysis of Odorous Materials by Massfragmentography in Raw Water Source of Water Supply

1978 ◽  
Vol 98 (1) ◽  
pp. 124-128
Author(s):  
YOSHITERU TSUCHIYA ◽  
TOSHIHIKO OKAMOTO
Keyword(s):  
Water Supply ◽  
Water Source ◽  
Raw Water

scholarly journals The Neural Network Assisted Land Use Regression

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 452
Author(s):  
Jan Bitta ◽  
Vladislav Svozilík ◽  
Aneta Svozilíková Krakovská
Keyword(s):  
Neural Network ◽  
Land Use ◽  
Linear Regression ◽  
Dispersion Model ◽  
Land Use Regression ◽  
Emission Data ◽  
Pollution Dispersion ◽  
Factors Affecting ◽  
Standard Linear

Land Use Regression (LUR) is one of the air quality assessment modelling techniques. Its advantages lie mainly in a much simpler mathematical apparatus, quicker and simpler calculations, and a possibility to incorporate more factors affecting pollutant concentration than standard dispersion models. The goal of the study was to perform the LUR model in the Polish-Czech-Slovakian Tritia region, to test two sets of pollution data input factors, i.e., factors based on emission data and pollution dispersion model results, to test regression via neural networks and compare it with standard linear regression. Both input datasets, emission data and pollution dispersion model results, provided a similar quality of results in the case when standard linear regression was used, the R2 of the models was 0.639 and 0.652. Neural network regression provided a significantly higher quality of the models, their R2 was 0.937 and 0.938 for the factors based on emission data and pollution dispersion model results respectively.

The Quality Analysis of Hallux Valgus Videos on YouTube

2021 ◽  
Author(s):  
Enes Sari ◽  
Levent FAZLI Umur
Keyword(s):  
Hallux Valgus ◽  
Information Quality ◽  
Statistical Significance ◽  
Poor Quality ◽  
Quality Analysis ◽  
Accurate Information ◽  
Youtube Videos ◽  
The Mean ◽  
The Difference

BACKGROUND:The aim of this study was to evaluate the information quality of YouTube videos on hallux valgus. METHODS:A YouTube search was performed using the keyword 'hallux valgus' to determine the first 300 videos related to hallux valgus. A total of 54 videos met our inclusion criteria and evaluated for information quality by using DISCERN, Journal of the American Medical Association (JAMA) and hallux valgus information assessment (HAVIA) scores. Number of views, time since the upload date, view rate, number of comments, number of likes, number of dislikes, video power index (VPI) values were calculated to determine video popularity. Video length (sec), video source and video content were also noted. The relation between information quality and these factors were statistically evaluated. RESULTS:The mean DISCERN score was 30.35{plus minus}11.56 (poor quality) (14-64), the mean JAMA score was 2.28{plus minus}0.96 (1-4), and the mean HAVIA score was 3.63{plus minus}2.42 (moderate quality) (0.5-8.5). Although videos uploaded by physicians had higher mean DISCERN, JAMA, and HAVIA scores than videos uploaded by non-physicians, the difference was not statistically significant. Additionally, view rates and VPI values were higher for videos uploaded by health channels, but the difference did not reach statistical significance. A statistically significant positive correlation was found between video length and DISCERN (r= 0.294, p= 0.028), and HAVIA scores (r= 0.326, p= 0.015). CONCLUSIONS:This present study demonstrated that the quality of information available on YouTube videos about hallux valgus was low and insufficient. Videos containing accurate information from reliable sources are needed to educate patients on hallux valgus, especially in less frequently mentioned topics such as postoperative complications and healing period.

scholarly journals An Investigation into the Quality of Medicines in Yangon, Myanmar

Pharmacy ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 96 ◽  
Author(s):  
Md. Islam ◽  
Naoko Yoshida ◽  
Kazuko Kimura ◽  
Chisana Uwatoko ◽  
Mohammad Rahman ◽  
...  
Keyword(s):  
Poor Quality ◽  
Cefuroxime Axetil ◽  
Quality Analysis ◽  
Content Uniformity ◽  
Counterfeit Medicines ◽  
Ceftriaxone Sodium ◽  
Substandard Medicines ◽  
Dissolution Tests ◽  
Microbial Assay

Many poor-quality medicines are supplied to patients mainly in developing countries. No systematic survey on counterfeit medicines has been conducted in Myanmar since 1999. The purpose of this study was to investigate the current situation of substandard or counterfeit medicines in Myanmar. Samples of oral medicines, cefuroxime axetil (CXM), donepezil hydrochloride (DN) and omeprazole (OM), and injections, ceftriaxone sodium (CTRX), and gentamicin sulfate (GM), were collected from pharmacies, hospitals, and wholesalers in Yangon, Myanmar in 2014. Authenticity and quality were verified. There were 221 (94%) foreign medicines among 235 collected samples. Five samples of GM and 1 DN sample were not registered with the Food and Drug Administration, Myanmar. In quality analysis, 36 samples out of 177 (20.3%) did not pass quantity tests, 27 samples out of 176 (15.3%) did not pass content uniformity tests, and 23 out of 128 samples (18.0%) did not pass dissolution tests. Three of the unregistered GM samples failed in both identification and microbial assay tests. Counterfeit GM is being sold in Yangon. Also, the quality of OM is a matter of concern. Poor-quality medicines were frequently found among the products of a few manufacturers. Regular surveys to monitor counterfeit and substandard medicines in Myanmar are recommended.

scholarly journals Suitable Land-Use and Land-Cover Allocation Scenarios to Minimize Sediment and Nutrient Loads into Kwan Phayao, Upper Ing Watershed, Thailand

2021 ◽  
Vol 11 (21) ◽  
pp. 10430
Author(s):  
Jiraporn Kulsoontornrat ◽  
Suwit Ongsomwang
Keyword(s):  
Land Use ◽  
Ecosystem Service ◽  
Land Use Changes ◽  
Nutrient Export ◽  
Nutrient Loads ◽  
Landsat Images ◽  
Svm Algorithm ◽  
Crucial Information ◽  
S Model

Human activity and land-use changes have affected the water quality of Kwan Phayao, Upper Ing watershed, due to the associated high sediment load and eutrophication. This study aims to identify suitable LULC allocation scenarios for minimizing sediment and nutrient export into the lake. For this purpose, the LULC status and change were first assessed, based on classified LULC data in 2009 and 2019 from Landsat images, using the SVM algorithm. Later, the land requirements of three scenarios between 2020 and 2029 were estimated, based on their characteristics, and applied to predict LULC change using the CLUE-S model. Then, actual LULC data in 2019 and predicted LULC data under three scenarios between 2020 and 2029 were used to estimate sediment and nutrient export using the SDR and NDR models. Finally, the ecosystem service change index identified a suitable LULC allocation for minimizing sediment or/and nutrient export. According to the results, LULC status and change indicated perennial trees and orchards, para rubber, and rangeland increased, while forest land and paddy fields decreased. The land requirements of the three scenarios provided reasonable results, as expected, particularly Scenario II, which adopts linear programming to calculate the land requirements for maximizing ecosystem service values. For sediment and nutrient export estimation under the predicted LULC for the three scenarios, Scenario II led to the lowest yield of sediment and nutrient exports, and provided the lowest average ESCI value among the three scenarios. Thus, the LULC allocation under Scenario II was chosen as suitable for minimizing sediment or/and nutrient export into Kwan Phayao. These results can serve as crucial information to minimize sediment and nutrient loads for land-use planners, land managers, and decision makers.

scholarly journals Impact of Changes in Land Use and Land Cover in the Contribution Basin of Doutor João Penido Water Supply Reservoir of Juiz de Fora, MG, Brazil

2021 ◽  
Vol 11 (1) ◽  
pp. 108
Author(s):  
Juliana Nazareth de Lana ◽  
Márcio de Oliveira ◽  
Vanessa Romario de Paula ◽  
Cézar Henrique Barra Rocha
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Cover ◽  
Water Supply ◽  
Quality Parameters ◽  
E Coli ◽  
The City ◽  
Water Supply Reservoirs ◽  
Limnological Parameters

Changes in the land use and land cover in areas adjacent to water reservoirs directly affect the quality of this water. This research presents a study on the water quality in the basin of one of the most important public water supply reservoirs in the city of Juiz de Fora, Minas Gerais. The main objective of this study was to analyze the behavior of limnological parameters and the correlation with land use and land cover in the contribution basin of the Doutor João Penido reservoir (CBJPR). The methodology was based on the analysis of water quality parameters, related to water samples collected from 2012 to 2015. Six sampling points were chosen from different locations: spring, medium course, main tributaries of the reservoir and the reservoir catchment. The parameters analyzed were turbidity, total solids (TS), oxygen consumed (OC), dissolved oxygen (DO), electrical conductivity, total nitrogen (TN), total phosphorus (TP), E. Coli, temperature, pH and total dissolved solids (TDS). The Kendall’s tau test was used to analyze the correlations between the parameters of water quality, land use and land cover in the CBJPR. In general, measured parameters showed better results in spring and in reservoir catchment, showing a worse quality of the water along the tributaries and the dilution power of the reservoir. The correlations pointed to the need for protection and preservation of forests in strategic locations to ensure good water quality.

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